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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 46 72 6f 6d 20 61 6e 64 | 79 62 40 77 6e 64 72 73 |From and|yb@wndrs|
|00000010| 76 72 2e 6c 61 2e 63 61 | 2e 75 73 20 54 75 65 20 |vr.la.ca|.us Tue |
|00000020| 4a 75 6e 20 31 36 20 31 | 37 3a 32 35 3a 34 35 20 |Jun 16 1|7:25:45 |
|00000030| 31 39 39 32 0a 44 61 74 | 65 3a 20 53 61 74 2c 20 |1992.Dat|e: Sat, |
|00000040| 31 33 20 4a 75 6e 20 39 | 32 20 39 3a 30 37 3a 35 |13 Jun 9|2 9:07:5|
|00000050| 39 20 50 44 54 0a 46 72 | 6f 6d 3a 20 41 6e 64 79 |9 PDT.Fr|om: Andy|
|00000060| 20 42 72 61 67 65 72 20 | 3c 61 6e 64 79 62 40 77 | Brager |<andyb@w|
|00000070| 6e 64 72 73 76 72 2e 6c | 61 2e 63 61 2e 75 73 3e |ndrsvr.l|a.ca.us>|
|00000080| 0a 54 6f 3a 20 4c 61 75 | 72 65 6e 63 65 20 4c 75 |.To: Lau|rence Lu|
|00000090| 6e 64 62 6c 61 64 65 20 | 3c 6c 67 6c 40 63 61 63 |ndblade |<lgl@cac|
|000000a0| 2e 77 61 73 68 69 6e 67 | 74 6f 6e 2e 65 64 75 3e |.washing|ton.edu>|
|000000b0| 0a 53 75 62 6a 65 63 74 | 3a 20 52 65 3a 20 70 6f |.Subject|: Re: po|
|000000c0| 72 74 20 74 6f 20 53 79 | 73 74 65 6d 20 56 20 63 |rt to Sy|stem V c|
|000000d0| 6f 6d 70 6c 65 74 65 0a | 0a 3e 20 20 20 20 49 27 |omplete.|.>    I'|
|000000e0| 6d 20 68 61 63 6b 69 6e | 67 20 74 68 72 6f 75 67 |m hackin|g throug|
|000000f0| 68 20 74 68 65 20 64 69 | 66 66 73 20 6e 6f 77 20 |h the di|ffs now |
|00000100| 61 6e 64 20 73 65 65 6d | 20 74 6f 20 62 65 20 6d |and seem| to be m|
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|00000120| 73 63 2e 63 2e 0a 0a 46 | 75 6c 6c 20 66 69 6c 65 |sc.c...F|ull file|
|00000130| 20 69 6e 63 6c 75 64 65 | 64 2e 0a 0a 3e 20 59 6f | include|d...> Yo|
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|00000150| 63 6c 69 65 6e 74 20 73 | 74 75 66 66 20 69 73 20 |client s|tuff is |
|00000160| 61 20 6c 69 74 74 6c 65 | 20 62 69 74 20 6d 75 63 |a little| bit muc|
|00000170| 68 2c 20 62 75 74 20 49 | 20 74 68 69 6e 6b 20 77 |h, but I| think w|
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|00000210| 56 2c 20 77 68 69 63 68 | 20 77 61 73 20 67 6f 69 |V, which| was goi|
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|00000360| 20 20 20 20 20 20 20 20 | 20 54 20 48 20 45 20 20 |        | T H E  |
|00000370| 20 20 50 20 49 20 4e 20 | 45 20 20 20 20 4d 20 41 |  P I N |E    M A|
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|00000500| 20 20 20 4c 61 73 74 20 | 45 64 69 74 65 64 3a 0a |   Last |Edited:.|
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|00000ae0| 09 09 09 43 6f 70 79 72 | 69 67 68 74 20 28 63 29 |...Copyr|ight (c)|
|00000af0| 20 31 39 38 36 2c 20 31 | 39 38 37 20 44 61 76 65 | 1986, 1|987 Dave|
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|00000bf0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
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|00000c60| 27 73 20 69 6e 74 65 72 | 66 61 63 65 20 74 6f 20 |'s inter|face to |
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|00002610| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00002620| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 0a |--------|-------.|
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|00002840| 3d 20 27 7b 27 29 20 7b | 0a 20 20 20 20 20 20 20 |= '{') {|.       |
|00002850| 20 63 68 61 72 20 2a 69 | 6c 6c 20 3d 20 66 69 6c | char *i|ll = fil|
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|00002870| 65 6e 61 6d 65 29 3b 0a | 20 20 20 20 20 20 20 20 |ename);.|        |
|00002880| 69 66 28 69 6c 6c 20 21 | 3d 20 4e 55 4c 4c 29 20 |if(ill !|= NULL) |
|00002890| 7b 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 71 5f |{.      |      q_|
|000028a0| 73 74 61 74 75 73 5f 6d | 65 73 73 61 67 65 31 28 |status_m|essage1(|
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|000028c0| 65 72 20 6e 61 6d 65 22 | 2c 20 69 6c 6c 29 3b 0a |er name"|, ill);.|
|000028d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 72 65 74 75 |        |    retu|
|000028e0| 72 6e 28 30 29 3b 0a 20 | 20 20 20 20 20 20 20 7d |rn(0);. |       }|
|000028f0| 0a 20 20 20 20 7d 0a 0a | 20 20 20 20 73 74 72 63 |.    }..|    strc|
|00002900| 70 79 28 74 65 6d 70 5f | 66 69 6c 65 6e 61 6d 65 |py(temp_|filename|
|00002910| 2c 20 66 69 6c 65 6e 61 | 6d 65 29 3b 0a 20 20 20 |, filena|me);.   |
|00002920| 20 69 66 28 73 74 72 75 | 63 6d 70 28 74 65 6d 70 | if(stru|cmp(temp|
|00002930| 5f 66 69 6c 65 6e 61 6d | 65 2c 20 22 69 6e 62 6f |_filenam|e, "inbo|
|00002940| 78 22 29 20 3d 3d 20 30 | 29 20 7b 0a 20 20 20 20 |x") == 0|) {.    |
|00002950| 20 20 20 20 73 74 72 63 | 70 79 28 66 69 6c 65 6e |    strc|py(filen|
|00002960| 61 6d 65 2c 20 70 73 5f | 67 6c 6f 62 61 6c 2d 3e |ame, ps_|global->|
|00002970| 56 41 52 5f 49 4e 42 4f | 58 5f 50 41 54 48 20 3d |VAR_INBO|X_PATH =|
|00002980| 3d 20 4e 55 4c 4c 20 3f | 20 22 69 6e 62 6f 78 22 |= NULL ?| "inbox"|
|00002990| 20 3a 0a 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | :.     |        |
|000029a0| 20 20 70 73 5f 67 6c 6f | 62 61 6c 2d 3e 56 41 52 |  ps_glo|bal->VAR|
|000029b0| 5f 49 4e 42 4f 58 5f 50 | 41 54 48 29 3b 0a 20 20 |_INBOX_P|ATH);.  |
|000029c0| 20 20 7d 20 65 6c 73 65 | 20 69 66 28 74 65 6d 70 |  } else| if(temp|
|000029d0| 5f 66 69 6c 65 6e 61 6d | 65 5b 30 5d 20 3d 3d 20 |_filenam|e[0] == |
|000029e0| 27 7b 27 29 20 7b 0a 20 | 20 20 20 20 20 20 20 73 |'{') {. |       s|
|000029f0| 74 72 63 70 79 28 66 69 | 6c 65 6e 61 6d 65 2c 20 |trcpy(fi|lename, |
|00002a00| 74 65 6d 70 5f 66 69 6c | 65 6e 61 6d 65 29 3b 0a |temp_fil|ename);.|
|00002a10| 20 20 20 20 7d 20 65 6c | 73 65 20 69 66 28 73 74 |    } el|se if(st|
|00002a20| 72 69 6e 64 65 78 28 22 | 2e 2f 7e 22 2c 20 74 65 |rindex("|./~", te|
|00002a30| 6d 70 5f 66 69 6c 65 6e | 61 6d 65 5b 30 5d 29 20 |mp_filen|ame[0]) |
|00002a40| 21 3d 20 4e 55 4c 4c 20 | 0a 09 20 20 20 20 20 20 |!= NULL |..      |
|00002a50| 26 26 20 70 73 5f 67 6c | 6f 62 61 6c 2d 3e 72 65 |&& ps_gl|obal->re|
|00002a60| 73 74 72 69 63 74 65 64 | 29 7b 0a 09 71 5f 73 74 |stricted|){..q_st|
|00002a70| 61 74 75 73 5f 6d 65 73 | 73 61 67 65 28 31 2c 33 |atus_mes|sage(1,3|
|00002a80| 2c 22 50 69 6e 65 20 64 | 65 6d 6f 20 6f 6e 6c 79 |,"Pine d|emo only|
|00002a90| 20 6f 70 65 6e 73 20 6c | 6f 63 61 6c 20 66 6f 6c | opens l|ocal fol|
|00002aa0| 64 65 72 73 22 29 3b 0a | 09 72 65 74 75 72 6e 28 |ders");.|.return(|
|00002ab0| 30 29 3b 0a 20 20 20 20 | 7d 20 65 6c 73 65 20 69 |0);.    |} else i|
|00002ac0| 66 28 74 65 6d 70 5f 66 | 69 6c 65 6e 61 6d 65 5b |f(temp_f|ilename[|
|00002ad0| 30 5d 20 3d 3d 20 27 2a | 27 29 20 7b 0a 20 20 20 |0] == '*|') {.   |
|00002ae0| 20 20 20 20 20 73 74 72 | 63 70 79 28 66 69 6c 65 |     str|cpy(file|
|00002af0| 6e 61 6d 65 2c 20 74 65 | 6d 70 5f 66 69 6c 65 6e |name, te|mp_filen|
|00002b00| 61 6d 65 29 3b 0a 20 20 | 20 20 7d 20 65 6c 73 65 |ame);.  |  } else|
|00002b10| 20 69 66 20 28 74 65 6d | 70 5f 66 69 6c 65 6e 61 | if (tem|p_filena|
|00002b20| 6d 65 5b 30 5d 20 3d 3d | 20 27 7e 27 29 7b 0a 20 |me[0] ==| '~'){. |
|00002b30| 20 20 20 20 20 20 20 69 | 66 28 66 6e 65 78 70 61 |       i|f(fnexpa|
|00002b40| 6e 64 28 74 65 6d 70 5f | 66 69 6c 65 6e 61 6d 65 |nd(temp_|filename|
|00002b50| 2c 20 73 69 7a 65 6f 66 | 28 74 65 6d 70 5f 66 69 |, sizeof|(temp_fi|
|00002b60| 6c 65 6e 61 6d 65 29 29 | 20 3d 3d 20 4e 55 4c 4c |lename))| == NULL|
|00002b70| 29 20 7b 0a 20 20 20 20 | 20 20 20 20 20 20 20 20 |) {.    |        |
|00002b80| 63 68 61 72 20 2a 70 20 | 3d 20 73 74 72 69 6e 64 |char *p |= strind|
|00002b90| 65 78 28 74 65 6d 70 5f | 66 69 6c 65 6e 61 6d 65 |ex(temp_|filename|
|00002ba0| 2c 20 27 2f 27 29 3b 0a | 20 20 20 20 09 20 20 20 |, '/');.|    .   |
|00002bb0| 20 69 66 28 70 20 21 3d | 20 4e 55 4c 4c 29 0a 20 | if(p !=| NULL). |
|00002bc0| 20 20 20 09 20 20 20 20 | 20 20 2a 70 20 3d 20 27 |   .    |  *p = '|
|00002bd0| 5c 30 27 3b 0a 20 20 20 | 20 09 20 20 20 20 71 5f |\0';.   | .    q_|
|00002be0| 73 74 61 74 75 73 5f 6d | 65 73 73 61 67 65 31 28 |status_m|essage1(|
|00002bf0| 31 2c 32 2c 0a 20 20 20 | 20 20 20 20 20 20 20 20 |1,2,.   |        |
|00002c00| 20 20 20 20 20 20 20 20 | 20 22 45 72 72 6f 72 20 |        | "Error |
|00002c10| 65 78 70 61 6e 64 69 6e | 67 20 66 6f 6c 64 65 72 |expandin|g folder|
|00002c20| 20 6e 61 6d 65 3a 20 5c | 22 25 73 5c 22 20 75 6e | name: \|"%s\" un|
|00002c30| 6b 6e 6f 77 6e 20 75 73 | 65 72 22 2c 0a 20 20 20 |known us|er",.   |
|00002c40| 20 09 20 20 20 20 20 20 | 20 74 65 6d 70 5f 66 69 | .      | temp_fi|
|00002c50| 6c 65 6e 61 6d 65 29 3b | 0a 20 20 20 20 09 20 20 |lename);|.    .  |
|00002c60| 20 20 72 65 74 75 72 6e | 28 30 29 3b 0a 20 20 20 |  return|(0);.   |
|00002c70| 20 20 20 20 20 7d 0a 20 | 20 20 20 20 20 20 20 73 |     }. |       s|
|00002c80| 74 72 63 70 79 28 66 69 | 6c 65 6e 61 6d 65 2c 20 |trcpy(fi|lename, |
|00002c90| 74 65 6d 70 5f 66 69 6c | 65 6e 61 6d 65 29 3b 0a |temp_fil|ename);.|
|00002ca0| 20 20 20 20 7d 20 65 6c | 73 65 20 69 66 28 74 65 |    } el|se if(te|
|00002cb0| 6d 70 5f 66 69 6c 65 6e | 61 6d 65 5b 30 5d 20 3d |mp_filen|ame[0] =|
|00002cc0| 3d 20 27 2f 27 29 20 7b | 0a 20 20 20 20 20 20 20 |= '/') {|.       |
|00002cd0| 20 73 74 72 63 70 79 28 | 66 69 6c 65 6e 61 6d 65 | strcpy(|filename|
|00002ce0| 2c 20 74 65 6d 70 5f 66 | 69 6c 65 6e 61 6d 65 29 |, temp_f|ilename)|
|00002cf0| 3b 0a 20 20 20 20 7d 20 | 65 6c 73 65 20 7b 0a 20 |;.    } |else {. |
|00002d00| 20 20 20 20 20 20 20 73 | 70 72 69 6e 74 66 28 66 |       s|printf(f|
|00002d10| 69 6c 65 6e 61 6d 65 2c | 22 25 73 2f 25 73 22 2c |ilename,|"%s/%s",|
|00002d20| 20 70 73 5f 67 6c 6f 62 | 61 6c 2d 3e 66 6f 6c 64 | ps_glob|al->fold|
|00002d30| 65 72 73 5f 64 69 72 2c | 20 74 65 6d 70 5f 66 69 |ers_dir,| temp_fi|
|00002d40| 6c 65 6e 61 6d 65 29 3b | 0a 20 20 20 20 7d 0a 20 |lename);|.    }. |
|00002d50| 20 20 20 64 70 72 69 6e | 74 28 35 2c 20 28 64 65 |   dprin|t(5, (de|
|00002d60| 62 75 67 66 69 6c 65 2c | 20 22 72 65 74 75 72 6e |bugfile,| "return|
|00002d70| 69 6e 67 20 5c 22 25 73 | 5c 22 5c 6e 22 2c 20 66 |ing \"%s|\"\n", f|
|00002d80| 69 6c 65 6e 61 6d 65 29 | 29 3b 20 20 20 20 0a 20 |ilename)|);    . |
|00002d90| 20 20 20 72 65 74 75 72 | 6e 28 31 29 3b 0a 7d 0a |   retur|n(1);.}.|
|00002da0| 0a 0a 0a 73 74 72 75 63 | 74 20 70 61 73 73 77 64 |...struc|t passwd|
|00002db0| 20 2a 67 65 74 70 77 6e | 61 6d 28 29 3b 0a 0a 2f | *getpwn|am();../|
|00002dc0| 2a 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |*-------|--------|
|00002dd0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00002de0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00002df0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00002e00| 2d 2d 2d 2d 2d 2d 2d 0a | 20 20 20 20 20 20 20 45 |-------.|       E|
|00002e10| 78 70 61 6e 64 20 74 68 | 65 20 7e 20 69 6e 20 61 |xpand th|e ~ in a|
|00002e20| 20 66 69 6c 65 20 61 6c | 61 20 74 68 65 20 63 73 | file al|a the cs|
|00002e30| 68 20 28 61 73 20 68 6f | 6d 65 20 64 69 72 65 63 |h (as ho|me direc|
|00002e40| 74 6f 72 79 29 0a 0a 20 | 20 20 41 72 67 73 3a 20 |tory).. |  Args: |
|00002e50| 62 75 66 20 2d 2d 20 20 | 54 68 65 20 66 69 6c 65 |buf --  |The file|
|00002e60| 6e 61 6d 65 20 74 6f 20 | 65 78 70 61 6e 64 20 28 |name to |expand (|
|00002e70| 6e 6f 74 68 69 6e 67 20 | 68 61 70 70 65 6e 73 20 |nothing |happens |
|00002e80| 75 6e 6c 65 73 73 20 62 | 65 67 69 6e 73 20 77 69 |unless b|egins wi|
|00002e90| 74 68 20 7e 29 0a 20 20 | 20 20 20 20 20 20 20 6c |th ~).  |       l|
|00002ea0| 65 6e 20 2d 2d 20 20 54 | 68 65 20 6c 65 6e 67 74 |en --  T|he lengt|
|00002eb0| 68 20 6f 66 20 74 68 65 | 20 62 75 66 66 65 72 20 |h of the| buffer |
|00002ec0| 70 61 73 73 65 64 20 69 | 6e 20 28 65 78 70 61 6e |passed i|n (expan|
|00002ed0| 73 69 6f 6e 20 69 73 20 | 69 6e 20 70 6c 61 63 65 |sion is |in place|
|00002ee0| 29 0a 0a 20 52 65 73 75 | 6c 74 3a 20 65 78 70 61 |).. Resu|lt: expa|
|00002ef0| 6e 64 65 64 20 73 74 72 | 69 6e 67 20 69 73 20 72 |nded str|ing is r|
|00002f00| 65 74 75 72 6e 65 64 20 | 75 73 69 6e 67 20 73 61 |eturned |using sa|
|00002f10| 6d 65 20 73 74 6f 72 61 | 67 65 20 61 73 20 70 61 |me stora|ge as pa|
|00002f20| 73 73 65 64 20 69 6e 0a | 20 20 20 20 20 20 20 20 |ssed in.|        |
|00002f30| 20 69 66 20 65 78 70 61 | 6e 73 69 6f 6e 20 66 61 | if expa|nsion fa|
|00002f40| 69 6c 73 2c 20 4e 55 4c | 4c 20 69 73 20 72 65 74 |ils, NUL|L is ret|
|00002f50| 75 72 6e 65 64 0a 20 2d | 2d 2d 2d 2a 2f 0a 0a 63 |urned. -|---*/..c|
|00002f60| 68 61 72 20 2a 0a 66 6e | 65 78 70 61 6e 64 28 62 |har *.fn|expand(b|
|00002f70| 75 66 2c 20 6c 65 6e 29 | 0a 20 20 20 20 20 63 68 |uf, len)|.     ch|
|00002f80| 61 72 20 2a 62 75 66 3b | 0a 20 20 20 20 20 69 6e |ar *buf;|.     in|
|00002f90| 74 20 6c 65 6e 3b 0a 7b | 0a 20 20 20 20 73 74 72 |t len;.{|.    str|
|00002fa0| 75 63 74 20 70 61 73 73 | 77 64 20 2a 70 77 3b 0a |uct pass|wd *pw;.|
|00002fb0| 20 20 20 20 72 65 67 69 | 73 74 65 72 20 63 68 61 |    regi|ster cha|
|00002fc0| 72 20 2a 78 2c 2a 79 3b | 0a 20 20 20 20 63 68 61 |r *x,*y;|.    cha|
|00002fd0| 72 20 6e 61 6d 65 5b 32 | 30 5d 3b 0a 20 20 20 20 |r name[2|0];.    |
|00002fe0| 0a 20 20 20 20 69 66 28 | 2a 62 75 66 20 3d 3d 20 |.    if(|*buf == |
|00002ff0| 27 7e 27 29 20 7b 0a 20 | 20 20 20 20 20 20 20 66 |'~') {. |       f|
|00003000| 6f 72 28 78 20 3d 20 62 | 75 66 2b 31 2c 20 79 20 |or(x = b|uf+1, y |
|00003010| 3d 20 6e 61 6d 65 3b 20 | 2a 78 20 21 3d 20 27 2f |= name; |*x != '/|
|00003020| 27 20 26 26 20 2a 78 20 | 21 3d 20 27 5c 30 27 3b |' && *x |!= '\0';|
|00003030| 20 2a 79 2b 2b 20 3d 20 | 2a 78 2b 2b 29 3b 0a 20 | *y++ = |*x++);. |
|00003040| 20 20 20 20 20 20 20 2a | 79 20 3d 20 27 5c 30 27 |       *|y = '\0'|
|00003050| 3b 0a 20 20 20 20 20 20 | 20 20 69 66 28 78 20 3d |;.      |  if(x =|
|00003060| 3d 20 62 75 66 20 2b 20 | 31 29 20 0a 20 20 20 20 |= buf + |1) .    |
|00003070| 20 20 20 20 20 20 70 77 | 20 3d 20 67 65 74 70 77 |      pw| = getpw|
|00003080| 75 69 64 28 67 65 74 75 | 69 64 28 29 29 3b 0a 20 |uid(getu|id());. |
|00003090| 20 20 20 20 20 20 20 65 | 6c 73 65 0a 20 20 20 20 |       e|lse.    |
|000030a0| 20 20 20 20 20 20 70 77 | 20 3d 20 67 65 74 70 77 |      pw| = getpw|
|000030b0| 6e 61 6d 28 6e 61 6d 65 | 29 3b 0a 20 20 20 20 20 |nam(name|);.     |
|000030c0| 20 20 20 69 66 28 70 77 | 20 3d 3d 20 4e 55 4c 4c |   if(pw| == NULL|
|000030d0| 29 0a 20 20 20 20 20 20 | 20 20 20 20 72 65 74 75 |).      |    retu|
|000030e0| 72 6e 28 4e 55 4c 4c 29 | 3b 0a 20 20 20 20 20 20 |rn(NULL)|;.      |
|000030f0| 20 20 69 66 28 73 74 72 | 6c 65 6e 28 70 77 2d 3e |  if(str|len(pw->|
|00003100| 70 77 5f 64 69 72 29 20 | 2b 20 73 74 72 6c 65 6e |pw_dir) |+ strlen|
|00003110| 28 62 75 66 29 20 3e 20 | 6c 65 6e 29 20 7b 0a 20 |(buf) > |len) {. |
|00003120| 20 20 20 20 20 20 20 20 | 20 20 20 72 65 74 75 72 |        |   retur|
|00003130| 6e 28 4e 55 4c 4c 29 3b | 0a 20 20 20 20 20 20 20 |n(NULL);|.       |
|00003140| 20 7d 0a 20 20 20 20 20 | 20 20 20 72 70 6c 73 74 | }.     |   rplst|
|00003150| 72 28 62 75 66 2c 20 78 | 20 2d 20 62 75 66 2c 20 |r(buf, x| - buf, |
|00003160| 70 77 2d 3e 70 77 5f 64 | 69 72 29 3b 0a 20 20 20 |pw->pw_d|ir);.   |
|00003170| 20 7d 0a 20 20 20 20 72 | 65 74 75 72 6e 28 6c 65 | }.    r|eturn(le|
|00003180| 6e 20 3f 20 62 75 66 20 | 3a 20 4e 55 4c 4c 29 3b |n ? buf |: NULL);|
|00003190| 0a 7d 0a 0a 0a 0a 2f 2a | 2d 2d 2d 2d 2d 2d 2d 2d |.}..../*|--------|
|000031a0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000031b0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000031c0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000031d0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 0a 20 |--------|------. |
|000031e0| 20 20 20 46 69 6c 74 65 | 72 20 66 69 6c 65 20 6e |   Filte|r file n|
|000031f0| 61 6d 65 73 20 66 6f 72 | 20 73 74 72 61 6e 67 65 |ames for| strange|
|00003200| 20 63 68 61 72 61 63 74 | 65 72 73 0a 0a 20 20 20 | charact|ers..   |
|00003210| 41 72 67 73 3a 20 20 66 | 69 6c 65 20 20 2d 2d 20 |Args:  f|ile  -- |
|00003220| 74 68 65 20 66 69 6c 65 | 20 6e 61 6d 65 20 74 6f |the file| name to|
|00003230| 20 63 68 65 63 6b 0a 20 | 0a 20 52 65 73 75 6c 74 | check. |. Result|
|00003240| 3a 20 52 65 74 75 72 6e | 73 20 4e 55 4c 4c 20 69 |: Return|s NULL i|
|00003250| 66 20 66 69 6c 65 20 6e | 61 6d 65 20 69 73 20 4f |f file n|ame is O|
|00003260| 4b 0a 20 20 20 20 20 20 | 20 20 20 52 65 74 75 72 |K.      |   Retur|
|00003270| 6e 73 20 66 6f 72 6d 61 | 74 74 65 64 20 65 72 72 |ns forma|tted err|
|00003280| 6f 72 20 6d 65 73 73 61 | 67 65 20 69 66 20 69 74 |or messa|ge if it|
|00003290| 20 69 73 20 6e 6f 74 0a | 0a 20 20 2d 2d 2d 2d 2a | is not.|.  ----*|
|000032a0| 2f 0a 0a 63 68 61 72 20 | 2a 0a 66 69 6c 74 65 72 |/..char |*.filter|
|000032b0| 5f 66 69 6c 65 6e 61 6d | 65 28 66 69 6c 65 29 0a |_filenam|e(file).|
|000032c0| 20 20 20 20 20 63 68 61 | 72 20 2a 66 69 6c 65 3b |     cha|r *file;|
|000032d0| 0a 7b 0a 23 69 66 64 65 | 66 20 41 4c 4c 4f 57 5f |.{.#ifde|f ALLOW_|
|000032e0| 57 45 49 52 44 0a 20 20 | 20 20 73 74 61 74 69 63 |WEIRD.  |  static|
|000032f0| 20 63 68 61 72 20 69 6c | 6c 65 67 61 6c 5b 5d 20 | char il|legal[] |
|00003300| 3d 20 7b 27 5c 31 37 37 | 27 2c 20 27 5c 30 27 7d |= {'\177|', '\0'}|
|00003310| 3b 0a 23 65 6c 73 65 0a | 20 20 20 20 73 74 61 74 |;.#else.|    stat|
|00003320| 69 63 20 63 68 61 72 20 | 69 6c 6c 65 67 61 6c 5b |ic char |illegal[|
|00003330| 5d 20 3d 20 7b 27 22 27 | 2c 20 27 23 27 2c 20 27 |] = {'"'|, '#', '|
|00003340| 24 27 2c 20 27 25 27 2c | 20 27 26 27 2c 20 27 5c |$', '%',| '&', '\|
|00003350| 27 27 2c 27 28 27 2c 20 | 27 29 27 2c 27 2a 27 2c |'','(', |')','*',|
|00003360| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.       |        |
|00003370| 20 20 20 20 20 20 20 20 | 20 20 20 27 2c 27 2c 20 |        |   ',', |
|00003380| 27 3a 27 2c 20 27 3b 27 | 2c 20 27 3c 27 2c 20 27 |':', ';'|, '<', '|
|00003390| 3d 27 2c 20 27 3e 27 2c | 20 27 3f 27 2c 20 27 5b |=', '>',| '?', '[|
|000033a0| 27 2c 20 27 5d 27 2c 0a | 20 20 20 20 20 20 20 20 |', ']',.|        |
|000033b0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|000033c0| 20 20 27 5c 5c 27 2c 20 | 27 5e 27 2c 20 27 7c 27 |  '\\', |'^', '|'|
|000033d0| 2c 20 27 5c 31 37 37 27 | 2c 20 27 5c 30 27 7d 3b |, '\177'|, '\0'};|
|000033e0| 0a 23 65 6e 64 69 66 0a | 20 20 20 20 73 74 61 74 |.#endif.|    stat|
|000033f0| 69 63 20 63 68 61 72 20 | 65 72 72 6f 72 5b 31 30 |ic char |error[10|
|00003400| 30 5d 3b 0a 20 20 20 20 | 63 68 61 72 20 69 6c 6c |0];.    |char ill|
|00003410| 5f 66 69 6c 65 5b 4d 41 | 58 50 41 54 48 2b 31 5d |_file[MA|XPATH+1]|
|00003420| 2c 20 2a 69 6c 6c 5f 63 | 68 61 72 2c 20 2a 70 74 |, *ill_c|har, *pt|
|00003430| 72 2c 20 65 32 5b 31 30 | 5d 3b 0a 0a 20 20 20 20 |r, e2[10|];..    |
|00003440| 70 74 72 20 3d 20 66 69 | 6c 65 3b 0a 20 20 20 20 |ptr = fi|le;.    |
|00003450| 77 68 69 6c 65 20 28 2a | 70 74 72 20 3d 3d 20 27 |while (*|ptr == '|
|00003460| 20 27 29 20 70 74 72 2b | 2b 3b 09 2f 2a 20 6c 65 | ') ptr+|+;./* le|
|00003470| 61 64 69 6e 67 20 73 70 | 61 63 65 73 20 47 4f 4e |ading sp|aces GON|
|00003480| 45 21 20 2a 2f 0a 0a 20 | 20 20 20 69 66 28 2a 70 |E! */.. |   if(*p|
|00003490| 74 72 20 3d 3d 20 27 2a | 27 29 0a 20 20 20 20 20 |tr == '*|').     |
|000034a0| 20 70 74 72 2b 2b 3b 20 | 2f 2a 20 41 6c 6c 6f 77 | ptr++; |/* Allow|
|000034b0| 20 2a 20 61 74 20 62 65 | 67 69 6e 6e 69 6e 67 20 | * at be|ginning |
|000034c0| 66 6f 72 20 6e 65 77 73 | 20 67 72 6f 75 70 73 20 |for news| groups |
|000034d0| 2a 2f 0a 0a 20 20 20 20 | 77 68 69 6c 65 28 2a 70 |*/..    |while(*p|
|000034e0| 74 72 20 26 26 20 2a 70 | 74 72 20 3e 20 27 20 27 |tr && *p|tr > ' '|
|000034f0| 20 26 26 20 73 74 72 69 | 6e 64 65 78 28 69 6c 6c | && stri|ndex(ill|
|00003500| 65 67 61 6c 2c 20 2a 70 | 74 72 29 20 3d 3d 20 30 |egal, *p|tr) == 0|
|00003510| 29 0a 20 20 20 20 20 20 | 70 74 72 2b 2b 3b 0a 0a |).      |ptr++;..|
|00003520| 20 20 20 20 69 66 28 2a | 70 74 72 20 21 3d 20 27 |    if(*|ptr != '|
|00003530| 5c 30 27 29 20 7b 0a 20 | 20 20 20 20 20 20 20 69 |\0') {. |       i|
|00003540| 66 28 2a 70 74 72 20 3d | 3d 20 27 20 27 29 20 7b |f(*ptr =|= ' ') {|
|00003550| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 69 6c 6c |.       |     ill|
|00003560| 5f 63 68 61 72 20 3d 20 | 22 3c 73 70 61 63 65 3e |_char = |"<space>|
|00003570| 22 3b 0a 20 20 20 20 20 | 20 20 20 7d 20 65 6c 73 |";.     |   } els|
|00003580| 65 20 69 66 28 2a 70 74 | 72 20 3d 3d 20 27 5c 6e |e if(*pt|r == '\n|
|00003590| 27 29 20 7b 0a 20 20 20 | 20 20 20 20 20 20 20 20 |') {.   |        |
|000035a0| 20 69 6c 6c 5f 63 68 61 | 72 20 3d 20 22 3c 6e 65 | ill_cha|r = "<ne|
|000035b0| 77 6c 69 6e 65 3e 22 3b | 0a 20 20 20 20 20 20 20 |wline>";|.       |
|000035c0| 20 7d 20 65 6c 73 65 20 | 69 66 28 2a 70 74 72 20 | } else |if(*ptr |
|000035d0| 3d 3d 20 27 5c 72 27 29 | 20 7b 0a 20 20 20 20 20 |== '\r')| {.     |
|000035e0| 20 20 20 20 20 20 20 69 | 6c 6c 5f 63 68 61 72 20 |       i|ll_char |
|000035f0| 3d 20 22 3c 63 61 72 72 | 69 61 67 65 20 72 65 74 |= "<carr|iage ret|
|00003600| 75 72 6e 3e 22 3b 0a 20 | 20 20 20 20 20 20 20 7d |urn>";. |       }|
|00003610| 20 65 6c 73 65 20 69 66 | 28 2a 70 74 72 20 3d 3d | else if|(*ptr ==|
|00003620| 20 27 5c 74 27 29 20 7b | 0a 20 20 20 20 09 20 20 | '\t') {|.    .  |
|00003630| 20 20 69 6c 6c 5f 63 68 | 61 72 20 3d 20 22 3c 74 |  ill_ch|ar = "<t|
|00003640| 61 62 3e 22 3b 0a 20 20 | 20 20 20 20 20 20 7d 20 |ab>";.  |      } |
|00003650| 65 6c 73 65 20 69 66 28 | 2a 70 74 72 20 3c 20 27 |else if(|*ptr < '|
|00003660| 20 27 29 20 7b 0a 20 20 | 20 20 20 20 20 20 20 20 | ') {.  |        |
|00003670| 20 20 73 70 72 69 6e 74 | 66 28 65 32 2c 20 22 63 |  sprint|f(e2, "c|
|00003680| 6f 6e 74 72 6f 6c 2d 25 | 63 22 2c 20 2a 70 74 72 |ontrol-%|c", *ptr|
|00003690| 20 2b 20 27 40 27 29 3b | 0a 20 20 20 20 20 20 20 | + '@');|.       |
|000036a0| 20 20 20 20 20 69 6c 6c | 5f 63 68 61 72 20 3d 20 |     ill|_char = |
|000036b0| 65 32 3b 0a 20 20 20 20 | 20 20 20 20 7d 20 65 6c |e2;.    |    } el|
|000036c0| 73 65 20 69 66 20 28 2a | 70 74 72 20 3d 3d 20 27 |se if (*|ptr == '|
|000036d0| 5c 31 37 37 27 29 20 7b | 0a 20 20 20 20 09 20 20 |\177') {|.    .  |
|000036e0| 20 20 69 6c 6c 5f 63 68 | 61 72 20 3d 20 22 3c 64 |  ill_ch|ar = "<d|
|000036f0| 65 6c 3e 22 3b 0a 20 20 | 20 20 20 20 20 20 7d 20 |el>";.  |      } |
|00003700| 65 6c 73 65 20 7b 0a 20 | 20 20 20 09 20 20 20 20 |else {. |   .    |
|00003710| 65 32 5b 30 5d 20 3d 20 | 2a 70 74 72 3b 0a 20 20 |e2[0] = |*ptr;.  |
|00003720| 20 20 09 20 20 20 20 65 | 32 5b 31 5d 20 3d 20 27 |  .    e|2[1] = '|
|00003730| 5c 30 27 3b 0a 20 20 20 | 20 09 20 20 20 20 69 6c |\0';.   | .    il|
|00003740| 6c 5f 63 68 61 72 20 3d | 20 65 32 3b 0a 20 20 20 |l_char =| e2;.   |
|00003750| 20 20 20 20 20 7d 0a 20 | 20 20 20 20 20 20 20 69 |     }. |       i|
|00003760| 66 28 70 74 72 20 21 3d | 20 66 69 6c 65 29 20 7b |f(ptr !=| file) {|
|00003770| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 73 74 72 |.       |     str|
|00003780| 6e 63 70 79 28 69 6c 6c | 5f 66 69 6c 65 2c 20 66 |ncpy(ill|_file, f|
|00003790| 69 6c 65 2c 20 70 74 72 | 20 2d 20 66 69 6c 65 29 |ile, ptr| - file)|
|000037a0| 3b 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 69 6c |;.      |      il|
|000037b0| 6c 5f 66 69 6c 65 5b 70 | 74 72 20 2d 20 66 69 6c |l_file[p|tr - fil|
|000037c0| 65 5d 20 3d 20 27 5c 30 | 27 3b 0a 20 20 20 20 20 |e] = '\0|';.     |
|000037d0| 20 20 20 20 20 20 20 73 | 70 72 69 6e 74 66 28 65 |       s|printf(e|
|000037e0| 72 72 6f 72 2c 22 43 68 | 61 72 61 63 74 65 72 20 |rror,"Ch|aracter |
|000037f0| 5c 22 25 73 5c 22 20 61 | 66 74 65 72 20 5c 22 25 |\"%s\" a|fter \"%|
|00003800| 73 5c 22 20 6e 6f 74 20 | 61 6c 6c 6f 77 65 64 22 |s\" not |allowed"|
|00003810| 2c 69 6c 6c 5f 63 68 61 | 72 2c 0a 20 20 20 20 20 |,ill_cha|r,.     |
|00003820| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 69 |        |       i|
|00003830| 6c 6c 5f 66 69 6c 65 29 | 3b 0a 20 20 20 20 20 20 |ll_file)|;.      |
|00003840| 20 20 7d 20 65 6c 73 65 | 20 7b 0a 20 20 20 20 20 |  } else| {.     |
|00003850| 20 20 20 20 20 20 20 73 | 70 72 69 6e 74 66 28 65 |       s|printf(e|
|00003860| 72 72 6f 72 2c 0a 20 20 | 20 20 20 20 20 20 20 20 |rror,.  |        |
|00003870| 20 20 20 20 20 20 20 20 | 20 20 22 46 69 72 73 74 |        |  "First|
|00003880| 20 63 68 61 72 61 63 74 | 65 72 2c 20 5c 22 25 73 | charact|er, \"%s|
|00003890| 5c 22 2c 20 6e 6f 74 20 | 61 6c 6c 6f 77 65 64 22 |\", not |allowed"|
|000038a0| 2c 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |,.      |        |
|000038b0| 20 20 20 20 20 20 69 6c | 6c 5f 63 68 61 72 29 3b |      il|l_char);|
|000038c0| 0a 20 20 20 20 20 20 20 | 20 7d 0a 20 20 20 20 20 |.       | }.     |
|000038d0| 20 20 20 20 20 20 20 0a | 20 20 20 20 20 20 20 20 |       .|        |
|000038e0| 72 65 74 75 72 6e 28 65 | 72 72 6f 72 29 3b 0a 20 |return(e|rror);. |
|000038f0| 20 20 20 7d 0a 20 20 20 | 20 72 65 74 75 72 6e 28 |   }.   | return(|
|00003900| 4e 55 4c 4c 29 3b 0a 7d | 0a 20 20 20 20 20 20 20 |NULL);.}|.       |
|00003910| 20 0a 0a 0a 46 49 4c 45 | 20 2a 66 64 6f 70 65 6e | ...FILE| *fdopen|
|00003920| 28 29 3b 0a 0a 2f 2a 2d | 2d 2d 2d 2d 2d 2d 2d 2d |();../*-|--------|
|00003930| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00003940| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00003950| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00003960| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 0a 20 20 |--------|-----.  |
|00003970| 20 20 20 20 20 66 69 6e | 64 20 68 6f 77 20 6d 75 |     fin|d how mu|
|00003980| 63 68 20 66 72 65 65 20 | 64 69 73 6b 20 73 70 61 |ch free |disk spa|
|00003990| 63 65 20 69 73 20 6f 6e | 20 61 20 6e 61 6d 65 64 |ce is on| a named|
|000039a0| 20 70 61 72 69 74 69 74 | 69 6f 6e 0a 0a 20 20 20 | paritit|ion..   |
|000039b0| 20 41 72 67 73 3a 20 54 | 68 65 20 6e 61 6d 65 20 | Args: T|he name |
|000039c0| 6f 66 20 74 68 65 20 64 | 65 76 69 63 65 20 6f 72 |of the d|evice or|
|000039d0| 20 6e 61 6d 65 20 6f 66 | 20 66 69 6c 65 20 6f 6e | name of| file on|
|000039e0| 20 77 68 69 63 68 20 64 | 65 76 69 63 65 20 6f 66 | which d|evice of|
|000039f0| 20 63 6f 6e 63 65 72 6e | 20 69 73 0a 20 0a 20 20 | concern| is. .  |
|00003a00| 52 65 73 75 6c 74 3a 20 | 72 65 74 75 72 6e 73 20 |Result: |returns |
|00003a10| 6e 75 6d 62 65 72 20 6f | 66 20 4b 20 62 79 74 65 |number o|f K byte|
|00003a20| 73 20 6f 66 20 66 72 65 | 65 20 73 70 61 63 65 0a |s of fre|e space.|
|00003a30| 0a 20 20 20 52 65 74 75 | 72 6e 20 74 68 65 20 66 |.   Retu|rn the f|
|00003a40| 72 65 65 20 73 70 61 63 | 65 20 6f 6e 20 74 68 65 |ree spac|e on the|
|00003a50| 20 6e 61 6d 65 64 20 64 | 69 73 6b 20 69 6e 20 31 | named d|isk in 1|
|00003a60| 4b 20 62 6c 6f 63 6b 73 | 0a 20 20 62 79 20 72 75 |K blocks|.  by ru|
|00003a70| 6e 6e 69 6e 67 20 64 66 | 28 31 29 2e 20 54 68 69 |nning df|(1). Thi|
|00003a80| 73 20 69 73 20 6f 66 20 | 63 6f 75 72 73 65 20 73 |s is of |course s|
|00003a90| 65 6e 73 69 74 69 76 65 | 20 74 6f 20 74 68 65 20 |ensitive| to the |
|00003aa0| 6f 75 74 70 75 74 20 6f | 66 20 64 66 0a 20 20 77 |output o|f df.  w|
|00003ab0| 68 69 63 68 20 63 68 61 | 6e 67 65 73 20 66 72 6f |hich cha|nges fro|
|00003ac0| 6d 20 6f 6e 65 20 55 4e | 49 58 20 74 6f 20 61 6e |m one UN|IX to an|
|00003ad0| 6f 74 68 65 72 2e 20 57 | 65 20 74 72 79 20 74 6f |other. W|e try to|
|00003ae0| 20 61 76 6f 69 64 20 74 | 68 69 73 20 62 79 0a 20 | avoid t|his by. |
|00003af0| 20 6c 6f 6f 6b 69 6e 67 | 20 66 6f 72 20 74 68 65 | looking| for the|
|00003b00| 20 66 69 72 73 74 20 6c | 69 6e 65 20 62 65 67 69 | first l|ine begi|
|00003b10| 6e 6e 69 6e 67 20 77 69 | 74 68 20 61 20 27 2f 27 |nning wi|th a '/'|
|00003b20| 20 77 68 69 63 68 20 69 | 73 20 74 68 65 0a 20 20 | which i|s the.  |
|00003b30| 66 69 72 73 74 20 6c 69 | 6e 65 20 74 68 61 74 27 |first li|ne that'|
|00003b40| 73 20 6e 6f 74 20 68 65 | 61 64 65 72 2e 20 28 54 |s not he|ader. (T|
|00003b50| 68 65 20 6d 61 69 6e 20 | 76 61 72 69 61 74 69 6f |he main |variatio|
|00003b60| 6e 20 69 73 20 68 65 61 | 64 65 72 20 6c 65 6e 67 |n is hea|der leng|
|00003b70| 74 68 29 0a 20 20 2d 2d | 2d 2d 2d 2a 2f 0a 0a 64 |th).  --|---*/..d|
|00003b80| 69 73 6b 5f 73 70 61 63 | 65 28 64 65 76 69 63 65 |isk_spac|e(device|
|00003b90| 5f 6e 61 6d 65 29 0a 20 | 20 20 20 20 63 68 61 72 |_name). |    char|
|00003ba0| 20 2a 64 65 76 69 63 65 | 5f 6e 61 6d 65 3b 0a 7b | *device|_name;.{|
|00003bb0| 0a 20 20 20 20 69 6e 74 | 20 20 20 20 20 20 20 20 |.    int|        |
|00003bc0| 20 20 20 20 70 69 70 65 | 5f 65 6e 64 73 5b 32 5d |    pipe|_ends[2]|
|00003bd0| 2c 20 70 69 64 2c 20 63 | 68 69 6c 64 3b 0a 20 20 |, pid, c|hild;.  |
|00003be0| 20 20 69 6e 74 20 20 20 | 20 20 20 20 20 20 20 20 |  int   |        |
|00003bf0| 20 6e 3b 0a 20 20 20 20 | 69 6e 74 20 20 20 20 20 | n;.    |int     |
|00003c00| 20 20 20 20 20 20 20 73 | 74 78 3b 0a 20 20 20 20 |       s|tx;.    |
|00003c10| 46 49 4c 45 20 20 20 20 | 20 20 20 20 20 20 2a 64 |FILE    |      *d|
|00003c20| 66 5f 73 3b 0a 20 20 20 | 20 72 65 67 69 73 74 65 |f_s;.   | registe|
|00003c30| 72 20 63 68 61 72 20 2a | 70 3b 0a 20 20 20 20 72 |r char *|p;.    r|
|00003c40| 65 67 69 73 74 65 72 20 | 63 68 61 72 20 2a 71 3b |egister |char *q;|
|00003c50| 0a 20 20 20 20 63 68 61 | 72 20 20 20 20 20 20 20 |.    cha|r       |
|00003c60| 20 20 20 20 62 75 66 5b | 31 30 30 30 5d 3b 0a 0a |    buf[|1000];..|
|00003c70| 20 20 20 20 2f 2a 2d 2d | 2d 2d 20 54 68 65 20 6e |    /*--|-- The n|
|00003c80| 75 6d 62 65 72 20 6f 66 | 20 6c 69 6e 65 73 20 74 |umber of| lines t|
|00003c90| 6f 20 73 6b 69 70 20 69 | 6e 20 74 68 65 20 68 65 |o skip i|n the he|
|00003ca0| 61 64 65 72 20 2d 2d 2d | 2d 2d 2a 2f 0a 20 20 20 |ader ---|--*/.   |
|00003cb0| 20 6e 20 3d 20 31 3b 0a | 0a 0a 20 20 20 20 69 66 | n = 1;.|..    if|
|00003cc0| 28 70 69 70 65 28 70 69 | 70 65 5f 65 6e 64 73 29 |(pipe(pi|pe_ends)|
|00003cd0| 3c 20 30 29 20 7b 0a 20 | 20 20 20 20 20 20 20 70 |< 0) {. |       p|
|00003ce0| 65 72 72 6f 72 28 22 70 | 69 70 65 22 29 3b 0a 20 |error("p|ipe");. |
|00003cf0| 20 20 20 20 20 20 20 72 | 65 74 75 72 6e 28 2d 31 |       r|eturn(-1|
|00003d00| 29 3b 0a 20 20 20 20 7d | 0a 0a 20 20 20 20 69 66 |);.    }|..    if|
|00003d10| 28 28 63 68 69 6c 64 20 | 3d 20 66 6f 72 6b 28 29 |((child |= fork()|
|00003d20| 29 20 3d 3d 20 30 29 20 | 7b 0a 09 63 6c 6f 73 65 |) == 0) |{..close|
|00003d30| 28 31 29 3b 0a 09 64 75 | 70 32 28 70 69 70 65 5f |(1);..du|p2(pipe_|
|00003d40| 65 6e 64 73 5b 31 5d 2c | 20 31 29 3b 0a 09 69 66 |ends[1],| 1);..if|
|00003d50| 28 65 78 65 63 6c 28 22 | 2f 62 69 6e 2f 64 66 22 |(execl("|/bin/df"|
|00003d60| 2c 22 64 66 22 2c 20 64 | 65 76 69 63 65 5f 6e 61 |,"df", d|evice_na|
|00003d70| 6d 65 2c 20 4e 55 4c 4c | 29 20 3c 20 30 29 0a 09 |me, NULL|) < 0)..|
|00003d80| 20 20 70 65 72 72 6f 72 | 28 22 65 78 65 63 20 64 |  perror|("exec d|
|00003d90| 66 22 29 3b 0a 20 20 20 | 20 7d 0a 0a 20 20 20 20 |f");.   | }..    |
|00003da0| 63 6c 6f 73 65 28 70 69 | 70 65 5f 65 6e 64 73 5b |close(pi|pe_ends[|
|00003db0| 31 5d 29 3b 0a 20 20 20 | 20 64 66 5f 73 20 3d 20 |1]);.   | df_s = |
|00003dc0| 66 64 6f 70 65 6e 28 70 | 69 70 65 5f 65 6e 64 73 |fdopen(p|ipe_ends|
|00003dd0| 5b 30 5d 2c 20 22 72 22 | 29 3b 0a 20 20 20 20 77 |[0], "r"|);.    w|
|00003de0| 68 69 6c 65 28 6e 20 3e | 3d 20 30 29 20 7b 0a 09 |hile(n >|= 0) {..|
|00003df0| 69 66 28 66 67 65 74 73 | 28 62 75 66 2c 20 73 69 |if(fgets|(buf, si|
|00003e00| 7a 65 6f 66 28 62 75 66 | 29 2c 20 64 66 5f 73 29 |zeof(buf|), df_s)|
|00003e10| 20 3d 3d 20 4e 55 4c 4c | 29 0a 09 20 20 72 65 74 | == NULL|)..  ret|
|00003e20| 75 72 6e 28 2d 32 29 3b | 0a 09 6e 2d 2d 3b 0a 20 |urn(-2);|..n--;. |
|00003e30| 20 20 20 7d 0a 20 20 20 | 20 0a 20 20 20 20 64 70 |   }.   | .    dp|
|00003e40| 72 69 6e 74 28 38 2c 20 | 28 64 65 62 75 67 66 69 |rint(8, |(debugfi|
|00003e50| 6c 65 2c 20 22 44 46 20 | 6f 75 74 70 75 74 2c 20 |le, "DF |output, |
|00003e60| 2d 2d 25 73 2d 2d 5c 6e | 22 2c 20 62 75 66 29 29 |--%s--\n|", buf))|
|00003e70| 3b 0a 20 20 20 20 2f 2a | 20 53 6b 69 70 20 74 68 |;.    /*| Skip th|
|00003e80| 65 20 66 69 6c 65 73 79 | 73 74 65 6d 20 2a 2f 0a |e filesy|stem */.|
|00003e90| 20 20 20 20 70 20 3d 20 | 62 75 66 3b 0a 20 20 20 |    p = |buf;.   |
|00003ea0| 20 66 6f 72 28 3b 2a 70 | 20 21 3d 20 27 20 27 3b | for(;*p| != ' ';|
|00003eb0| 20 70 2b 2b 29 3b 0a 20 | 20 20 20 66 6f 72 28 3b | p++);. |   for(;|
|00003ec0| 2a 70 20 3d 3d 20 27 20 | 27 3b 20 70 2b 2b 29 3b |*p == ' |'; p++);|
|00003ed0| 0a 20 20 20 20 2f 2a 20 | 53 6b 69 70 20 6f 76 65 |.    /* |Skip ove|
|00003ee0| 72 20 74 68 65 20 4b 62 | 79 74 65 73 20 66 69 65 |r the Kb|ytes fie|
|00003ef0| 6c 64 20 2a 2f 0a 20 20 | 20 20 66 6f 72 28 3b 2a |ld */.  |  for(;*|
|00003f00| 70 20 21 3d 20 27 20 27 | 3b 20 70 2b 2b 29 3b 0a |p != ' '|; p++);.|
|00003f10| 20 20 20 20 66 6f 72 28 | 3b 2a 70 20 3d 3d 20 27 |    for(|;*p == '|
|00003f20| 20 27 3b 20 70 2b 2b 29 | 3b 0a 0a 20 20 20 20 66 | '; p++)|;..    f|
|00003f30| 6f 72 28 71 20 3d 20 70 | 3b 2a 71 20 21 3d 20 27 |or(q = p|;*q != '|
|00003f40| 20 27 3b 71 2b 2b 29 3b | 0a 20 20 20 20 2a 71 20 | ';q++);|.    *q |
|00003f50| 3d 20 27 5c 30 27 3b 0a | 0a 0a 20 20 20 20 70 69 |= '\0';.|..    pi|
|00003f60| 64 20 3d 20 30 3b 0a 20 | 20 20 20 77 68 69 6c 65 |d = 0;. |   while|
|00003f70| 28 70 69 64 20 21 3d 20 | 63 68 69 6c 64 29 0a 20 |(pid != |child). |
|00003f80| 20 20 20 20 20 20 20 70 | 69 64 20 3d 20 77 61 69 |       p|id = wai|
|00003f90| 74 28 26 73 74 78 29 3b | 0a 0a 20 20 20 20 66 63 |t(&stx);|..    fc|
|00003fa0| 6c 6f 73 65 28 64 66 5f | 73 29 3b 0a 20 20 20 20 |lose(df_|s);.    |
|00003fb0| 64 70 72 69 6e 74 28 38 | 2c 20 28 64 65 62 75 67 |dprint(8|, (debug|
|00003fc0| 66 69 6c 65 2c 20 22 44 | 69 73 6b 20 72 65 61 64 |file, "D|isk read|
|00003fd0| 79 20 66 6f 72 20 61 74 | 6f 69 20 20 2d 2d 25 73 |y for at|oi  --%s|
|00003fe0| 2d 2d 5c 6e 22 2c 20 70 | 29 29 3b 0a 20 20 20 20 |--\n", p|));.    |
|00003ff0| 72 65 74 75 72 6e 28 61 | 74 6f 69 28 70 29 29 3b |return(a|toi(p));|
|00004000| 0a 7d 0a 0a 0a 20 20 20 | 20 0a 23 69 66 20 64 65 |.}...   | .#if de|
|00004010| 66 69 6e 65 64 28 55 53 | 45 5f 51 55 4f 54 41 53 |fined(US|E_QUOTAS|
|00004020| 29 0a 0a 23 75 6e 64 65 | 66 20 42 53 44 0a 23 69 |)..#unde|f BSD.#i|
|00004030| 6e 63 6c 75 64 65 20 3c | 73 79 73 2f 70 61 72 61 |nclude <|sys/para|
|00004040| 6d 2e 68 3e 20 0a 23 69 | 6e 63 6c 75 64 65 20 3c |m.h> .#i|nclude <|
|00004050| 73 79 73 2f 71 75 6f 74 | 61 2e 68 3e 0a 0a 2f 2a |sys/quot|a.h>../*|
|00004060| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004070| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004080| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004090| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000040a0| 2d 2d 2d 2d 2d 2d 0a 20 | 20 20 52 65 74 75 72 6e |------. |  Return|
|000040b0| 20 73 70 61 63 65 20 6c | 65 66 74 20 69 6e 20 64 | space l|eft in d|
|000040c0| 69 73 6b 20 71 75 6f 74 | 61 20 6f 6e 20 66 69 6c |isk quot|a on fil|
|000040d0| 65 20 73 79 73 74 65 6d | 20 67 69 76 65 6e 20 66 |e system| given f|
|000040e0| 69 6c 65 73 20 69 73 20 | 69 6e 0a 0a 20 20 20 20 |iles is |in..    |
|000040f0| 41 72 67 73 3a 20 70 61 | 74 68 20 2d 20 50 61 74 |Args: pa|th - Pat|
|00004100| 68 20 6e 61 6d 65 20 6f | 66 20 66 69 6c 65 20 6f |h name o|f file o|
|00004110| 72 20 64 69 72 65 63 74 | 6f 72 79 20 6f 6e 20 66 |r direct|ory on f|
|00004120| 69 6c 65 20 73 79 73 74 | 65 6d 20 6f 66 20 63 6f |ile syst|em of co|
|00004130| 6e 63 65 72 6e 0a 20 20 | 20 20 20 20 20 20 20 20 |ncern.  |        |
|00004140| 20 20 20 20 20 20 20 20 | 20 28 61 6e 79 20 66 69 |        | (any fi|
|00004150| 6c 65 20 77 69 6c 6c 20 | 64 6f 29 0a 20 20 20 20 |le will |do).    |
|00004160| 20 20 20 20 20 20 6f 76 | 65 72 20 2d 20 70 6f 69 |      ov|er - poi|
|00004170| 6e 74 65 72 20 74 6f 20 | 66 6c 61 67 20 74 68 61 |nter to |flag tha|
|00004180| 74 20 69 73 20 73 65 74 | 20 69 66 20 74 68 65 20 |t is set| if the |
|00004190| 75 73 65 72 20 69 73 20 | 6f 76 65 72 20 71 75 6f |user is |over quo|
|000041a0| 74 61 0a 0a 0a 20 52 65 | 74 75 72 6e 73 3a 20 54 |ta... Re|turns: T|
|000041b0| 68 65 20 6e 75 6d 62 65 | 72 20 6f 66 20 62 79 74 |he numbe|r of byt|
|000041c0| 65 73 20 66 72 65 65 20 | 69 6e 20 64 69 73 6b 20 |es free |in disk |
|000041d0| 71 75 6f 74 61 20 61 73 | 20 70 65 72 20 74 68 65 |quota as| per the|
|000041e0| 20 73 6f 66 74 20 6c 69 | 6d 69 74 2e 0a 20 20 20 | soft li|mit..   |
|000041f0| 20 20 20 20 20 20 20 2d | 31 20 69 73 20 72 65 74 |       -|1 is ret|
|00004200| 75 72 6e 65 64 20 6f 6e | 20 61 6e 20 65 72 72 6f |urned on| an erro|
|00004210| 72 20 6c 6f 6f 6b 69 6e | 67 20 75 70 20 71 75 6f |r lookin|g up quo|
|00004220| 74 61 0a 20 20 20 20 20 | 20 20 20 20 20 20 30 20 |ta.     |      0 |
|00004230| 69 73 20 72 65 74 75 72 | 6e 65 64 20 69 66 20 74 |is retur|ned if t|
|00004240| 68 65 72 65 20 69 73 20 | 6e 6f 20 71 75 6f 74 61 |here is |no quota|
|00004250| 0a 0a 42 55 47 3a 20 20 | 49 66 20 74 68 65 72 65 |..BUG:  |If there|
|00004260| 27 73 20 6d 6f 72 65 20 | 74 68 61 6e 20 32 2e 31 |'s more |than 2.1|
|00004270| 47 62 20 66 72 65 65 20 | 74 68 69 73 20 66 75 6e |Gb free |this fun|
|00004280| 63 74 69 6f 6e 20 77 69 | 6c 6c 20 62 72 65 61 6b |ction wi|ll break|
|00004290| 0a 20 20 2d 2d 2d 2d 2a | 2f 0a 6c 6f 6e 67 0a 64 |.  ----*|/.long.d|
|000042a0| 69 73 6b 5f 71 75 6f 74 | 61 28 70 61 74 68 2c 20 |isk_quot|a(path, |
|000042b0| 6f 76 65 72 29 0a 20 20 | 20 20 20 63 68 61 72 20 |over).  |   char |
|000042c0| 2a 70 61 74 68 3b 0a 20 | 20 20 20 20 69 6e 74 20 |*path;. |    int |
|000042d0| 20 2a 6f 76 65 72 3b 0a | 7b 0a 20 20 20 20 73 74 | *over;.|{.    st|
|000042e0| 72 75 63 74 20 73 74 61 | 74 20 73 74 61 74 78 3b |ruct sta|t statx;|
|000042f0| 0a 20 20 20 20 73 74 72 | 75 63 74 20 64 71 62 6c |.    str|uct dqbl|
|00004300| 6b 20 71 75 6f 74 61 78 | 3b 0a 20 20 20 20 6c 6f |k quotax|;.    lo|
|00004310| 6e 67 20 20 20 20 20 20 | 20 20 20 71 3b 0a 0a 20 |ng      |   q;.. |
|00004320| 20 20 20 64 70 72 69 6e | 74 28 35 2c 20 28 64 65 |   dprin|t(5, (de|
|00004330| 62 75 67 66 69 6c 65 2c | 20 22 71 75 6f 74 61 5f |bugfile,| "quota_|
|00004340| 63 68 65 63 6b 20 70 61 | 74 68 3a 20 25 73 5c 6e |check pa|th: %s\n|
|00004350| 22 2c 20 70 61 74 68 29 | 29 3b 0a 20 20 20 20 69 |", path)|);.    i|
|00004360| 66 28 73 74 61 74 28 70 | 61 74 68 2c 20 26 73 74 |f(stat(p|ath, &st|
|00004370| 61 74 78 29 20 3c 20 30 | 29 20 7b 0a 20 20 20 20 |atx) < 0|) {.    |
|00004380| 20 20 20 20 72 65 74 75 | 72 6e 28 2d 31 29 3b 0a |    retu|rn(-1);.|
|00004390| 20 20 20 20 7d 0a 0a 20 | 20 20 20 2a 6f 76 65 72 |    }.. |   *over|
|000043a0| 20 3d 20 30 3b 0a 20 20 | 20 20 65 72 72 6e 6f 20 | = 0;.  |  errno |
|000043b0| 3d 20 30 3b 0a 0a 20 20 | 20 20 64 70 72 69 6e 74 |= 0;..  |  dprint|
|000043c0| 28 37 2c 20 28 64 65 62 | 75 67 66 69 6c 65 2c 20 |(7, (deb|ugfile, |
|000043d0| 22 51 75 6f 74 61 20 63 | 68 65 63 6b 3a 20 55 49 |"Quota c|heck: UI|
|000043e0| 44 3a 25 64 20 20 73 74 | 61 74 3a 20 25 64 20 25 |D:%d  st|at: %d %|
|000043f0| 78 5c 6e 22 2c 20 0a 20 | 20 20 20 20 20 20 20 20 |x\n", . |        |
|00004400| 20 20 67 65 74 75 69 64 | 28 29 2c 20 73 74 61 74 |  getuid|(), stat|
|00004410| 78 2e 73 74 5f 64 65 76 | 2c 20 73 74 61 74 78 2e |x.st_dev|, statx.|
|00004420| 73 74 5f 64 65 76 29 29 | 3b 0a 20 20 20 20 69 66 |st_dev))|;.    if|
|00004430| 28 71 75 6f 74 61 28 51 | 5f 47 45 54 44 4c 49 4d |(quota(Q|_GETDLIM|
|00004440| 2c 20 67 65 74 75 69 64 | 28 29 2c 20 73 74 61 74 |, getuid|(), stat|
|00004450| 78 2e 73 74 5f 64 65 76 | 2c 20 26 71 75 6f 74 61 |x.st_dev|, &quota|
|00004460| 78 29 20 3c 20 30 29 20 | 7b 0a 20 20 20 20 20 20 |x) < 0) |{.      |
|00004470| 20 20 64 70 72 69 6e 74 | 28 35 2c 20 28 64 65 62 |  dprint|(5, (deb|
|00004480| 75 67 66 69 6c 65 2c 20 | 22 51 75 6f 74 61 20 66 |ugfile, |"Quota f|
|00004490| 61 69 6c 65 64 20 3a 20 | 25 73 5c 6e 22 2c 0a 20 |ailed : |%s\n",. |
|000044a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|000044b0| 20 20 65 72 72 6f 72 5f | 64 65 73 63 72 69 70 74 |  error_|descript|
|000044c0| 69 6f 6e 28 65 72 72 6e | 6f 29 29 29 3b 0a 20 20 |ion(errn|o)));.  |
|000044d0| 20 20 20 20 20 20 69 66 | 28 65 72 72 6e 6f 20 3d |      if|(errno =|
|000044e0| 3d 20 45 53 52 43 48 29 | 0a 20 20 20 20 20 20 20 |= ESRCH)|.       |
|000044f0| 20 20 20 72 65 74 75 72 | 6e 28 30 29 3b 20 2f 2a |   retur|n(0); /*|
|00004500| 20 4e 6f 20 6c 69 6d 69 | 74 20 2a 2f 0a 20 20 20 | No limi|t */.   |
|00004510| 20 20 20 20 20 65 6c 73 | 65 0a 20 20 20 20 20 20 |     els|e.      |
|00004520| 20 20 20 20 72 65 74 75 | 72 6e 28 2d 31 29 3b 20 |    retu|rn(-1); |
|00004530| 2f 2a 20 53 6f 6d 65 20 | 74 68 69 6e 67 20 77 65 |/* Some |thing we|
|00004540| 6e 74 20 77 72 6f 6e 67 | 20 2a 2f 0a 20 20 20 20 |nt wrong| */.    |
|00004550| 7d 0a 0a 20 20 20 20 64 | 70 72 69 6e 74 28 35 2c |}..    d|print(5,|
|00004560| 28 64 65 62 75 67 66 69 | 6c 65 2c 22 51 75 6f 74 |(debugfi|le,"Quot|
|00004570| 61 3a 20 62 73 6f 66 74 | 6c 69 6d 69 74 3a 25 64 |a: bsoft|limit:%d|
|00004580| 20 20 62 68 61 72 64 6c | 69 6d 69 74 3a 25 64 20 |  bhardl|imit:%d |
|00004590| 20 63 75 72 62 6c 6f 63 | 6b 3a 25 64 5c 6e 22 2c | curbloc|k:%d\n",|
|000045a0| 0a 20 20 20 20 20 20 20 | 20 20 20 71 75 6f 74 61 |.       |   quota|
|000045b0| 78 2e 64 71 62 5f 62 73 | 6f 66 74 6c 69 6d 69 74 |x.dqb_bs|oftlimit|
|000045c0| 2c 20 71 75 6f 74 61 78 | 2e 64 71 62 5f 62 68 61 |, quotax|.dqb_bha|
|000045d0| 72 64 6c 69 6d 69 74 2c | 20 71 75 6f 74 61 78 2e |rdlimit,| quotax.|
|000045e0| 64 71 62 5f 63 75 72 62 | 6c 6f 63 6b 73 29 29 3b |dqb_curb|locks));|
|000045f0| 0a 0a 20 20 20 20 2f 2a | 20 53 6f 6d 65 20 63 6f |..    /*| Some co|
|00004600| 6e 66 75 73 69 6f 6e 20 | 6f 6e 20 74 68 65 20 74 |nfusion |on the t|
|00004610| 79 70 65 20 6f 66 20 62 | 73 6f 66 74 6c 69 6d 69 |ype of b|softlimi|
|00004620| 74 2e 20 54 68 65 20 69 | 6e 63 6c 75 64 65 20 66 |t. The i|nclude f|
|00004630| 69 6c 65 20 73 61 79 73 | 0a 20 20 20 20 20 20 20 |ile says|.       |
|00004640| 75 6e 73 69 67 6e 65 64 | 2c 20 62 75 74 20 2d 31 |unsigned|, but -1|
|00004650| 20 73 65 65 6d 73 20 74 | 6f 20 69 6e 64 69 63 61 | seems t|o indica|
|00004660| 74 65 20 6e 6f 20 71 75 | 6f 74 61 20 2a 2f 0a 20 |te no qu|ota */. |
|00004670| 20 20 20 69 66 28 71 75 | 6f 74 61 78 2e 64 71 62 |   if(qu|otax.dqb|
|00004680| 5f 62 73 6f 66 74 6c 69 | 6d 69 74 20 3d 3d 20 30 |_bsoftli|mit == 0|
|00004690| 20 7c 7c 20 28 6c 6f 6e | 67 29 71 75 6f 74 61 78 | || (lon|g)quotax|
|000046a0| 2e 64 71 62 5f 62 73 6f | 66 74 6c 69 6d 69 74 20 |.dqb_bso|ftlimit |
|000046b0| 3d 3d 20 2d 31 29 20 0a | 20 20 20 20 20 20 72 65 |== -1) .|      re|
|000046c0| 74 75 72 6e 28 30 29 3b | 0a 0a 20 20 20 20 71 20 |turn(0);|..    q |
|000046d0| 3d 20 28 71 75 6f 74 61 | 78 2e 64 71 62 5f 62 73 |= (quota|x.dqb_bs|
|000046e0| 6f 66 74 6c 69 6d 69 74 | 20 2d 20 71 75 6f 74 61 |oftlimit| - quota|
|000046f0| 78 2e 64 71 62 5f 63 75 | 72 62 6c 6f 63 6b 73 29 |x.dqb_cu|rblocks)|
|00004700| 20 2a 20 31 30 32 34 3b | 0a 20 20 20 20 69 66 28 | * 1024;|.    if(|
|00004710| 71 20 3c 20 30 29 20 7b | 0a 20 20 20 20 20 20 20 |q < 0) {|.       |
|00004720| 20 71 20 3d 20 2d 71 3b | 0a 20 20 20 20 20 20 20 | q = -q;|.       |
|00004730| 20 2a 6f 76 65 72 20 3d | 20 31 3b 0a 20 20 20 20 | *over =| 1;.    |
|00004740| 7d 0a 20 20 20 20 64 70 | 72 69 6e 74 28 35 2c 20 |}.    dp|rint(5, |
|00004750| 28 64 65 62 75 67 66 69 | 6c 65 2c 20 22 64 69 73 |(debugfi|le, "dis|
|00004760| 6b 5f 71 75 6f 74 61 20 | 72 65 74 75 72 6e 69 6e |k_quota |returnin|
|00004770| 67 20 3a 25 64 2c 20 20 | 6f 76 65 72 3a 25 64 5c |g :%d,  |over:%d\|
|00004780| 6e 22 2c 20 71 2c 20 2a | 6f 76 65 72 29 29 3b 0a |n", q, *|over));.|
|00004790| 20 20 20 20 72 65 74 75 | 72 6e 28 71 29 3b 0a 7d |    retu|rn(q);.}|
|000047a0| 0a 0a 0a 0a 23 65 6e 64 | 69 66 20 2f 2a 20 55 53 |....#end|if /* US|
|000047b0| 45 5f 51 55 4f 54 41 53 | 20 2a 2f 0a 0a 0a 0a 0a |E_QUOTAS| */.....|
|000047c0| 2f 2a 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |/*------|--------|
|000047d0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000047e0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000047f0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004800| 2d 2d 2d 2d 2d 2d 2d 2d | 0a 20 20 20 20 20 20 56 |--------|.      V|
|00004810| 65 72 79 20 73 69 6d 70 | 6c 65 2c 20 6d 69 6e 69 |ery simp|le, mini|
|00004820| 6d 61 6c 20 61 6e 64 20 | 6d 61 63 68 69 6e 65 20 |mal and |machine |
|00004830| 69 6e 64 65 70 65 6e 64 | 65 6e 74 20 64 69 72 65 |independ|ent dire|
|00004840| 63 74 6f 72 79 20 61 63 | 63 65 73 73 0a 20 20 0a |ctory ac|cess.  .|
|00004850| 20 20 54 68 69 73 20 6a | 75 73 74 20 61 6c 6c 6f |  This j|ust allo|
|00004860| 77 73 20 6f 70 65 6e 69 | 6e 67 20 6f 66 20 6f 6e |ws openi|ng of on|
|00004870| 65 20 64 69 72 65 63 74 | 6f 72 79 20 61 74 20 61 |e direct|ory at a|
|00004880| 20 74 69 6d 65 20 61 6e | 64 20 67 65 74 74 69 6e | time an|d gettin|
|00004890| 67 20 74 68 65 20 0a 66 | 69 6c 65 73 20 69 6e 20 |g the .f|iles in |
|000048a0| 74 68 61 74 20 64 69 72 | 65 63 74 6f 72 79 2e 0a |that dir|ectory..|
|000048b0| 20 2d 2d 2d 2d 2a 2f 0a | 0a 23 69 6e 63 6c 75 64 | ----*/.|.#includ|
|000048c0| 65 20 3c 73 79 73 2f 64 | 69 72 2e 68 3e 0a 23 69 |e <sys/d|ir.h>.#i|
|000048d0| 6e 63 6c 75 64 65 20 3c | 73 79 73 2f 64 69 72 65 |nclude <|sys/dire|
|000048e0| 6e 74 2e 68 3e 0a 0a 0a | 73 74 61 74 69 63 20 44 |nt.h>...|static D|
|000048f0| 49 52 20 2a 64 69 72 65 | 63 74 6f 72 79 3b 0a 0a |IR *dire|ctory;..|
|00004900| 2f 2a 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |/*------|--------|
|00004910| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004920| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004930| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004940| 2d 2d 2d 2d 2d 2d 2d 2d | 0a 20 20 20 20 20 4f 70 |--------|.     Op|
|00004950| 65 6e 20 61 20 64 69 72 | 65 63 74 6f 72 79 20 66 |en a dir|ectory f|
|00004960| 6f 72 20 73 75 62 73 65 | 71 75 65 6e 74 20 72 65 |or subse|quent re|
|00004970| 61 64 69 6e 67 20 6f 66 | 20 66 69 6c 65 6e 61 6d |ading of| filenam|
|00004980| 65 73 20 77 69 74 68 69 | 6e 20 20 0a 0a 20 20 20 |es withi|n  ..   |
|00004990| 20 41 72 67 73 3a 20 64 | 69 72 20 2d 2d 20 54 68 | Args: d|ir -- Th|
|000049a0| 65 20 6e 61 6d 65 20 6f | 66 20 74 68 65 20 64 69 |e name o|f the di|
|000049b0| 72 65 63 74 6f 72 79 20 | 74 6f 20 6f 70 65 6e 0a |rectory |to open.|
|000049c0| 0a 20 20 52 65 73 75 6c | 74 3a 20 30 20 69 73 20 |.  Resul|t: 0 is |
|000049d0| 73 75 63 63 65 73 73 66 | 75 6c 2c 20 2d 31 20 69 |successf|ul, -1 i|
|000049e0| 66 20 6e 6f 74 0a 20 20 | 2d 2d 2d 2a 2f 0a 73 69 |f not.  |---*/.si|
|000049f0| 6d 70 6c 65 5f 6f 70 65 | 6e 64 69 72 28 64 69 72 |mple_ope|ndir(dir|
|00004a00| 29 0a 20 20 20 20 20 63 | 68 61 72 20 2a 64 69 72 |).     c|har *dir|
|00004a10| 3b 0a 7b 0a 20 20 20 20 | 64 69 72 65 63 74 6f 72 |;.{.    |director|
|00004a20| 79 20 3d 20 6f 70 65 6e | 64 69 72 28 64 69 72 29 |y = open|dir(dir)|
|00004a30| 3b 0a 20 20 20 20 69 66 | 28 64 69 72 65 63 74 6f |;.    if|(directo|
|00004a40| 72 79 20 3d 3d 20 4e 55 | 4c 4c 29 0a 20 20 20 20 |ry == NU|LL).    |
|00004a50| 20 20 72 65 74 75 72 6e | 28 2d 31 29 3b 0a 20 20 |  return|(-1);.  |
|00004a60| 20 20 72 65 74 75 72 6e | 28 30 29 3b 0a 7d 0a 0a |  return|(0);.}..|
|00004a70| 2f 2a 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |/*------|--------|
|00004a80| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004a90| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004aa0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004ab0| 2d 2d 2d 2d 2d 2d 2d 2d | 0a 20 20 20 20 52 65 74 |--------|.    Ret|
|00004ac0| 75 72 6e 73 20 74 68 65 | 20 6e 65 78 74 20 66 69 |urns the| next fi|
|00004ad0| 6c 65 20 6e 61 6d 65 20 | 69 6e 20 74 68 65 20 64 |le name |in the d|
|00004ae0| 69 72 65 63 74 6f 72 79 | 20 6f 70 65 6e 65 64 20 |irectory| opened |
|00004af0| 62 79 20 73 69 6d 70 6c | 65 5f 6f 70 65 6e 64 69 |by simpl|e_opendi|
|00004b00| 72 0a 0a 20 20 20 20 20 | 41 72 67 73 3a 20 20 0a |r..     |Args:  .|
|00004b10| 0a 20 20 52 65 74 75 72 | 6e 73 3a 20 73 74 72 69 |.  Retur|ns: stri|
|00004b20| 6e 67 20 77 69 74 68 20 | 6e 61 6d 65 20 6f 66 20 |ng with |name of |
|00004b30| 66 69 6c 65 20 6f 72 20 | 4e 55 4c 4c 0a 20 2d 2d |file or |NULL. --|
|00004b40| 2d 2d 2a 2f 0a 63 68 61 | 72 20 2a 0a 73 69 6d 70 |--*/.cha|r *.simp|
|00004b50| 6c 65 5f 72 65 61 64 64 | 69 72 28 29 0a 7b 0a 20 |le_readd|ir().{. |
|00004b60| 20 20 20 72 65 67 69 73 | 74 65 72 20 73 74 72 75 |   regis|ter stru|
|00004b70| 63 74 20 64 69 72 65 63 | 74 20 20 20 20 2a 64 70 |ct direc|t    *dp|
|00004b80| 3b 0a 0a 20 20 20 20 69 | 66 28 64 69 72 65 63 74 |;..    i|f(direct|
|00004b90| 6f 72 79 20 3d 3d 20 4e | 55 4c 4c 29 0a 20 20 20 |ory == N|ULL).   |
|00004ba0| 20 20 20 72 65 74 75 72 | 6e 28 4e 55 4c 4c 29 3b |   retur|n(NULL);|
|00004bb0| 0a 20 20 20 20 64 70 20 | 3d 20 72 65 61 64 64 69 |.    dp |= readdi|
|00004bc0| 72 28 64 69 72 65 63 74 | 6f 72 79 29 3b 0a 20 20 |r(direct|ory);.  |
|00004bd0| 20 20 69 66 28 64 70 20 | 3d 3d 20 4e 55 4c 4c 29 |  if(dp |== NULL)|
|00004be0| 0a 20 20 20 20 20 20 72 | 65 74 75 72 6e 28 4e 55 |.      r|eturn(NU|
|00004bf0| 4c 4c 29 3b 0a 20 20 20 | 20 72 65 74 75 72 6e 28 |LL);.   | return(|
|00004c00| 64 70 2d 3e 64 5f 6e 61 | 6d 65 29 3b 0a 7d 0a 0a |dp->d_na|me);.}..|
|00004c10| 2f 2a 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |/*------|--------|
|00004c20| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004c30| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004c40| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004c50| 2d 2d 2d 2d 2d 2d 2d 2d | 0a 20 20 20 43 6c 6f 73 |--------|.   Clos|
|00004c60| 65 20 74 68 65 20 63 75 | 72 72 65 6e 74 6c 79 20 |e the cu|rrently |
|00004c70| 6f 70 65 6e 20 64 69 72 | 65 63 74 6f 72 79 20 20 |open dir|ectory  |
|00004c80| 0a 20 2d 2d 2d 2d 2a 2f | 0a 76 6f 69 64 0a 73 69 |. ----*/|.void.si|
|00004c90| 6d 70 6c 65 5f 63 6c 6f | 73 65 64 69 72 28 29 0a |mple_clo|sedir().|
|00004ca0| 7b 0a 20 20 20 20 63 6c | 6f 73 65 64 69 72 28 64 |{.    cl|osedir(d|
|00004cb0| 69 72 65 63 74 6f 72 79 | 29 3b 0a 7d 0a 0a 0a 0a |irectory|);.}....|
|00004cc0| 0a 0a 2f 2a 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |../*----|--------|
|00004cd0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004ce0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004cf0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004d00| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 0a 20 20 20 20 52 |--------|--.    R|
|00004d10| 65 61 64 20 77 68 6f 6c | 65 20 66 69 6c 65 20 69 |ead whol|e file i|
|00004d20| 6e 74 6f 20 6d 65 6d 6f | 72 79 0a 0a 20 20 41 72 |nto memo|ry..  Ar|
|00004d30| 67 73 3a 20 66 69 6c 65 | 6e 61 6d 65 20 2d 2d 20 |gs: file|name -- |
|00004d40| 70 61 74 68 20 6e 61 6d | 65 20 6f 66 20 66 69 6c |path nam|e of fil|
|00004d50| 65 20 74 6f 20 72 65 61 | 64 0a 0a 20 20 52 65 73 |e to rea|d..  Res|
|00004d60| 75 6c 74 3a 20 52 65 74 | 75 72 6e 73 20 70 6f 69 |ult: Ret|urns poi|
|00004d70| 6e 74 65 72 20 74 6f 20 | 6d 61 6c 6c 6f 63 65 64 |nter to |malloced|
|00004d80| 20 6d 65 6d 6f 72 79 20 | 77 69 74 68 20 74 68 65 | memory |with the|
|00004d90| 20 63 6f 6e 74 65 6e 74 | 73 20 6f 66 20 74 68 65 | content|s of the|
|00004da0| 20 66 69 6c 65 0a 20 20 | 20 20 20 20 20 20 20 20 | file.  |        |
|00004db0| 6f 72 20 4e 55 4c 4c 0a | 0a 54 68 69 73 20 77 6f |or NULL.|.This wo|
|00004dc0| 6e 27 74 20 77 6f 72 6b | 20 76 65 72 79 20 77 65 |n't work| very we|
|00004dd0| 6c 6c 20 69 66 20 74 68 | 65 20 66 69 6c 65 20 68 |ll if th|e file h|
|00004de0| 61 73 20 4e 55 4c 4c 73 | 20 69 6e 20 69 74 20 61 |as NULLs| in it a|
|00004df0| 6e 64 20 69 73 20 6d 6f | 73 74 6c 79 0a 69 6e 74 |nd is mo|stly.int|
|00004e00| 65 6e 64 65 64 20 66 6f | 72 20 66 61 69 72 6c 79 |ended fo|r fairly|
|00004e10| 20 73 6d 61 6c 6c 20 74 | 65 78 74 20 66 69 6c 65 | small t|ext file|
|00004e20| 73 2e 0a 20 20 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |s..  ---|--------|
|00004e30| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004e40| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004e50| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004e60| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2a 2f 0a 63 68 |--------|---*/.ch|
|00004e70| 61 72 20 2a 0a 72 65 61 | 64 5f 66 69 6c 65 28 66 |ar *.rea|d_file(f|
|00004e80| 69 6c 65 6e 61 6d 65 29 | 0a 20 20 20 20 20 63 68 |ilename)|.     ch|
|00004e90| 61 72 20 2a 66 69 6c 65 | 6e 61 6d 65 3b 0a 7b 0a |ar *file|name;.{.|
|00004ea0| 20 20 20 20 69 6e 74 20 | 20 20 20 20 20 20 20 20 |    int |        |
|00004eb0| 66 64 3b 0a 20 20 20 20 | 73 74 72 75 63 74 20 73 |fd;.    |struct s|
|00004ec0| 74 61 74 20 73 74 61 74 | 62 75 66 3b 0a 20 20 20 |tat stat|buf;.   |
|00004ed0| 20 63 68 61 72 20 20 20 | 20 20 20 20 2a 62 75 66 | char   |    *buf|
|00004ee0| 3b 0a 0a 20 20 20 20 66 | 64 20 3d 20 6f 70 65 6e |;..    f|d = open|
|00004ef0| 28 66 69 6c 65 6e 61 6d | 65 2c 20 4f 5f 52 44 4f |(filenam|e, O_RDO|
|00004f00| 4e 4c 59 29 3b 0a 20 20 | 20 20 69 66 28 66 64 20 |NLY);.  |  if(fd |
|00004f10| 3c 20 30 29 0a 20 20 20 | 20 20 20 72 65 74 75 72 |< 0).   |   retur|
|00004f20| 6e 28 4e 55 4c 4c 29 3b | 0a 0a 20 20 20 20 66 73 |n(NULL);|..    fs|
|00004f30| 74 61 74 28 66 64 2c 20 | 26 73 74 61 74 62 75 66 |tat(fd, |&statbuf|
|00004f40| 29 3b 0a 0a 20 20 20 20 | 62 75 66 20 3d 20 66 73 |);..    |buf = fs|
|00004f50| 5f 67 65 74 28 73 74 61 | 74 62 75 66 2e 73 74 5f |_get(sta|tbuf.st_|
|00004f60| 73 69 7a 65 20 2b 20 31 | 29 3b 0a 0a 20 20 20 20 |size + 1|);..    |
|00004f70| 69 66 28 72 65 61 64 28 | 66 64 2c 20 62 75 66 2c |if(read(|fd, buf,|
|00004f80| 20 73 74 61 74 62 75 66 | 2e 73 74 5f 73 69 7a 65 | statbuf|.st_size|
|00004f90| 29 20 21 3d 20 73 74 61 | 74 62 75 66 2e 73 74 5f |) != sta|tbuf.st_|
|00004fa0| 73 69 7a 65 29 20 7b 0a | 20 20 20 20 20 20 20 20 |size) {.|        |
|00004fb0| 63 6c 6f 73 65 28 66 64 | 29 3b 0a 20 20 20 20 20 |close(fd|);.     |
|00004fc0| 20 20 20 72 65 74 75 72 | 6e 28 4e 55 4c 4c 29 3b |   retur|n(NULL);|
|00004fd0| 0a 20 20 20 20 7d 0a 20 | 20 20 20 63 6c 6f 73 65 |.    }. |   close|
|00004fe0| 28 66 64 29 3b 0a 0a 20 | 20 20 20 62 75 66 5b 73 |(fd);.. |   buf[s|
|00004ff0| 74 61 74 62 75 66 2e 73 | 74 5f 73 69 7a 65 5d 3d |tatbuf.s|t_size]=|
|00005000| 20 27 5c 30 27 3b 0a 0a | 20 20 20 20 72 65 74 75 | '\0';..|    retu|
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|00005020| 0a 0a 0a 2f 2a 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |.../*---|--------|
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|00005db0| 09 09 22 45 4e 4f 45 4e | 54 22 2c 20 20 22 4e 6f |.."ENOEN|T",  "No|
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|00005e30| 2f 2a 20 35 20 2a 2f 09 | 09 22 45 49 4f 22 2c 20 |/* 5 */.|."EIO", |
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|00005e60| 22 2c 20 20 20 22 4e 6f | 20 73 75 63 68 20 64 65 |",   "No| such de|
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|00005ea0| 74 6f 6f 20 6c 6f 6e 67 | 22 2c 0a 2f 2a 20 38 20 |too long|",./* 8 |
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|00005ef0| 65 20 6e 75 6d 62 65 72 | 22 2c 0a 2f 2a 20 31 30 |e number|",./* 10|
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|00005f10| 4e 6f 20 63 68 69 6c 64 | 72 65 6e 22 2c 0a 2f 2a |No child|ren",./*|
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|00005f30| 20 20 22 4e 6f 20 6d 6f | 72 65 20 70 72 6f 63 65 |  "No mo|re proce|
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|00005f50| 22 45 4e 4f 4d 45 4d 22 | 2c 20 20 22 4e 6f 74 20 |"ENOMEM"|,  "Not |
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|00005fc0| 2a 2f 09 22 45 4e 4f 54 | 42 4c 4b 22 2c 20 22 42 |*/."ENOT|BLK", "B|
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|00005ff0| 22 45 42 55 53 59 22 2c | 20 20 20 22 4d 6f 75 6e |"EBUSY",|   "Moun|
|00006000| 74 20 64 65 76 69 63 65 | 20 62 75 73 79 22 2c 0a |t device| busy",.|
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|00006020| 22 2c 20 20 22 46 69 6c | 65 20 65 78 69 73 74 73 |",  "Fil|e exists|
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|00006070| 22 4e 6f 20 73 75 63 68 | 20 64 65 76 69 63 65 22 |"No such| device"|
|00006080| 2c 0a 2f 2a 20 32 30 20 | 2a 2f 09 22 45 4e 4f 54 |,./* 20 |*/."ENOT|
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|000060e0| 2c 20 20 22 49 6e 76 61 | 6c 69 64 20 61 72 67 75 |,  "Inva|lid argu|
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|00006160| 20 22 4e 6f 74 20 61 20 | 74 79 70 65 77 72 69 74 | "Not a |typewrit|
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|000061a0| 20 2a 2f 09 22 45 46 42 | 49 47 22 2c 20 20 20 22 | */."EFB|IG",   "|
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|000061d0| 43 22 2c 20 20 22 4e 6f | 20 73 70 61 63 65 20 6c |C",  "No| space l|
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|000061f0| 2f 2a 20 32 39 20 2a 2f | 09 22 45 53 50 49 50 45 |/* 29 */|."ESPIPE|
|00006200| 22 2c 20 20 22 49 6c 6c | 65 67 61 6c 20 73 65 65 |",  "Ill|egal see|
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|00006250| 4b 22 2c 20 20 22 54 6f | 6f 20 6d 61 6e 79 20 6c |K",  "To|o many l|
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|00006270| 22 45 50 49 50 45 22 2c | 20 20 20 22 42 72 6f 6b |"EPIPE",|   "Brok|
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|000062a0| 61 74 68 20 61 72 67 20 | 6f 75 74 20 6f 66 20 64 |ath arg |out of d|
|000062b0| 6f 6d 61 69 6e 20 6f 66 | 20 66 75 6e 63 22 2c 0a |omain of| func",.|
|000062c0| 2f 2a 20 33 34 20 2a 2f | 09 22 45 52 41 4e 47 45 |/* 34 */|."ERANGE|
|000062d0| 22 2c 20 20 22 4d 61 74 | 68 20 72 65 73 75 6c 74 |",  "Mat|h result|
|000062e0| 20 6e 6f 74 20 72 65 70 | 72 65 73 65 6e 74 61 62 | not rep|resentab|
|000062f0| 6c 65 22 2c 0a 2f 2a 20 | 33 35 20 2a 2f 09 22 45 |le",./* |35 */."E|
|00006300| 4e 4f 4d 53 47 22 2c 20 | 20 22 4e 6f 20 6d 65 73 |NOMSG", | "No mes|
|00006310| 73 61 67 65 20 6f 66 20 | 64 65 73 69 72 65 64 20 |sage of |desired |
|00006320| 74 79 70 65 22 2c 0a 2f | 2a 20 33 36 20 2a 2f 09 |type",./|* 36 */.|
|00006330| 22 45 49 44 52 4d 22 2c | 20 20 20 22 49 64 65 6e |"EIDRM",|   "Iden|
|00006340| 74 69 66 69 65 72 20 72 | 65 6d 6f 76 65 64 22 0a |tifier r|emoved".|
|00006350| 09 7d 3b 0a 23 65 6e 64 | 69 66 0a 0a 63 68 61 72 |.};.#end|if..char|
|00006360| 20 2a 73 74 72 63 70 79 | 28 29 3b 0a 0a 2f 2a 2d | *strcpy|();../*-|
|00006370| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00006380| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00006390| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000063a0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000063b0| 2d 2d 2d 2d 2d 0a 20 20 | 20 20 20 20 52 65 74 75 |-----.  |    Retu|
|000063c0| 72 6e 20 73 68 6f 72 74 | 20 65 72 72 6f 72 20 6e |rn short| error n|
|000063d0| 61 6d 65 20 73 74 72 69 | 6e 67 20 66 6f 72 20 65 |ame stri|ng for e|
|000063e0| 72 72 6f 72 20 6e 75 6d | 62 65 72 0a 20 0a 20 20 |rror num|ber. .  |
|000063f0| 20 41 72 67 73 3a 20 65 | 72 72 6e 75 6d 62 65 72 | Args: e|rrnumber|
+--------+-------------------------+-------------------------+--------+--------+